Claude Fable 5.2 77.2/100Rank 2/53

STEALTHMARK · HEAD TO HEAD
All comparisons ↗Claude Fable 5.2 leads Qwen3.8-Max-0902 by 16.5 points on StealthMark, 79.8 to 63.3. It leads on all 9 benchmarks. Claude Fable 5.2 scores higher on Newton's Mirror, with its largest category advantage in reflections.
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BENCHMARK BY BENCHMARK
DATASHEET
Full datasheets, every price and sourceQwen3.8-Max-0902 ↗
Anticipating threats and planning ahead. Collect coins while avoiding ghosts. Ghosts move before the player each turn, and collisions cost a life. 3 levels in sequence, up to 66 turns in total. Earlier moves and outcomes carry forward, testing learning across levels.


Cooperative planning and learning from experience. Coordinate two robots to push numbered cores onto matching sockets. Pressure plates hold doors open; moving either robot uses one turn. 5 levels in sequence, up to 152 turns in total. Earlier moves and outcomes carry forward, testing learning across levels.


Physics, perspective and recursive reflections, tested together. Explore the test ↗


Claude Fable 5.2
The composition closely preserves the principal camera relationships. Visible cyan contact, elongated crimson coating and separate airborne black paint support the required interaction sequence, with a small crimson transport overshoot. Correct broad mirror placement coexists with major omissions in nested spherical imagery and simplified emitter mapping. Core score: 105.5/170; floor-damage reward: 0/10; combined total: 105.5/180.
Qwen3.8-Max-0902
The central sphere and differentiated cyan/crimson interaction are supported. The tiny highlighted object above the sphere provides partial airborne-black evidence. The few isolated sphere and panel images preserve limited optical relationships, but most of the repeating mirror-room structure is missing. Core score: 64.5/170; including the floor-damage reward: 64.5/180.
| Category | Claude Fable 5.2 | Qwen3.8-Max-0902 |
|---|---|---|
| State at 600 ms | 24.0/25 | 23.0/25 |
| Camera and placement | 15.0/15 | 12.0/15 |
| Reflections | 80.0/120 | 29.0/120 |
| Materials and scale | 8.5/10 | 8.0/10 |
| Floor-damage reward | 0.0/10 | 0.0/10 |
A spinning metal sphere and paint in a mirrored room test physical reasoning, perspective and consistency across repeated reflections.
Visual construction and creative interpretation.


Claude Fable 5.2
The compact mantle, eight curling rays and quiet face closely realize the requested living emblem. Controlled arm contours, coherent overlaps and restrained ornament give the design character. Shallow depth, ribbon-like arm modeling and repeated highlight bands limit anatomical and lighting complexity without compromising the intact silhouette.
Qwen3.8-Max-0902
A coherent ornamental illustration with balanced framing, appealing color and legible magical accessories. The disconnected raised wrist, incorrect raised-arm side and palm orientation, bear-like facial proportions and shallow material modeling limit execution. Clean decoration and compact spatial balance remain strengths.
| Category | Claude Fable 5.2 | Qwen3.8-Max-0902 |
|---|---|---|
| Task & likeness | 9.0/10 | 7.5/10 |
| Anatomy & construction | 7.5/10 | 6.5/10 |
| Space & placement | 7.0/10 | 8.0/10 |
| Light & reflections | 7.0/10 | 7.0/10 |
| Purposeful detail | 6.5/10 | 7.5/10 |
| Artistry & character | 6.5/10 | 7.0/10 |
| Materials & effects | 7.0/10 | 7.5/10 |
| Visual integrity | 8.5/10 | 6.5/10 |
Claude Fable 5.2
A coral squid with spreading arms tests connected anatomy, balanced composition and soft surface shading.
Qwen3.8-Max-0902
A floating capybara in ornate robes tests character anatomy, layered fabric and the placement of surrounding luminous forms.
Precise visual recall and portrait reconstruction.


Claude Fable 5.2
A developed illustrative portrait with controlled facial shading, connected limbs, layered scenery and distinct aged-paint and gold effects. Its frontal torso, conspicuous smile and flattened fingers limit replication and anatomical precision. Decorative finish is stronger than the underlying seated construction.
Qwen3.8-Max-0902
A recognizable, cohesive Mona Lisa interpretation with readable landscape layers and a restrained expression. Continuous body construction and clean contours support readability, but broad hands, simplified drapery, frontal symmetry and limited facial volume keep the execution basic and uneven.
| Category | Claude Fable 5.2 | Qwen3.8-Max-0902 |
|---|---|---|
| Task & likeness | 6.5/10 | 4.5/10 |
| Anatomy & construction | 6.0/10 | 3.5/10 |
| Space & placement | 6.0/10 | 5.0/10 |
| Light & reflections | 6.5/10 | 5.0/10 |
| Purposeful detail | 6.0/10 | 5.0/10 |
| Artistry & character | 6.5/10 | 5.0/10 |
| Materials & effects | 7.5/10 | 3.5/10 |
| Visual integrity | 7.5/10 | 5.0/10 |
An SVG interpretation of the Mona Lisa tests facial likeness, anatomy and the composition of a familiar portrait.
Creativity, perspective and visual beauty.


Claude Fable 5.2
A lively sunset beach with clear playful activity, purposeful small details and developed water reflections. Layering and supported placements hold the scene together. Schematic anatomy and the turtle's overhead viewpoint limit construction, space and artistry, while atmospheric and surface effects show greater refinement.
Qwen3.8-Max-0902
A strong stylized beach illustration with coherent sunset color, lively dolphin arcs and balanced activity. Clean contours, readable ground contact and an aligned reflection support the finish. Schematic anatomy, sparse small-subject features, flat materials and repetitive water highlights limit physical depth and refinement.
| Category | Claude Fable 5.2 | Qwen3.8-Max-0902 |
|---|---|---|
| Task & likeness | 9.0/10 | 8.5/10 |
| Anatomy & construction | 8.0/10 | 7.5/10 |
| Space & placement | 7.5/10 | 7.5/10 |
| Light & reflections | 8.5/10 | 8.0/10 |
| Purposeful detail | 8.5/10 | 7.0/10 |
| Artistry & character | 8.0/10 | 8.0/10 |
| Materials & effects | 7.5/10 | 6.5/10 |
| Visual integrity | 8.0/10 | 8.5/10 |
A busy shoreline at sunset tests scene composition, animal forms and the relationship between light and water reflections.
Physical reasoning, light and visual reconstruction.


Claude Fable 5.2
This benchmark has not been assessed yet.
Qwen3.8-Max-0902
This benchmark has not been assessed yet.
A plank, computer mouse and blueberry in a steel room test physical stability, spatial relationships, materials and lighting.
Scene composition and interacting subjects.


Claude Fable 5.2
A controlled action illustration with expressive animals, demonstrated riding and steering, and an energetic layered wake. Purposeful small features and articulated poses strengthen the drawing. Simplified extremities, shallow character volume and limited physical lighting remain its principal constraints.
Qwen3.8-Max-0902
The riding arrangement and steering action are readable, supported by coherent visible attachments and useful character details. Clean shapes, strong color separation and clustered foam make the scene appealing and active. Stiff anatomy, crowded controls, limited directional lighting and simple surface treatments constrain sophistication.
| Category | Claude Fable 5.2 | Qwen3.8-Max-0902 |
|---|---|---|
| Task & likeness | 8.5/10 | 8.0/10 |
| Anatomy & construction | 8.0/10 | 7.0/10 |
| Space & placement | 7.5/10 | 7.0/10 |
| Light & reflections | 7.0/10 | 6.5/10 |
| Purposeful detail | 8.5/10 | 7.0/10 |
| Artistry & character | 8.0/10 | 6.5/10 |
| Materials & effects | 7.5/10 | 6.0/10 |
| Visual integrity | 8.0/10 | 7.5/10 |
A jet-ski scene pairs a canine driver with a raccoon passenger. It tests the placement and contact of interacting subjects, along with vehicle construction.
Subject construction and spatial relationships.


Claude Fable 5.2
A strong illustration with an expressive pelican, readable riding contacts and carefully constructed bicycle details. Layered plumage, basket weave and coastal scenery reward inspection. Continuous attachments support the action, while limited visible leg articulation, modest volume and weakly directional foreground lighting constrain physical sophistication.
Qwen3.8-Max-0902
An appealing graphic illustration with a recognizable pelican, readable bicycle and clean coastal composition. Steering contact and one connected pedal support the action. Ambiguous neck-to-torso construction, an unclear opposing pedal connection, shallow space and limited material and lighting effects constrain its execution.
| Category | Claude Fable 5.2 | Qwen3.8-Max-0902 |
|---|---|---|
| Task & likeness | 9.0/10 | 8.5/10 |
| Anatomy & construction | 8.0/10 | 6.5/10 |
| Space & placement | 7.5/10 | 7.0/10 |
| Light & reflections | 6.5/10 | 6.0/10 |
| Purposeful detail | 8.0/10 | 7.5/10 |
| Artistry & character | 7.5/10 | 7.5/10 |
| Materials & effects | 7.0/10 | 6.0/10 |
| Visual integrity | 8.0/10 | 8.0/10 |
A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.